P<scp>HYTOCHEMICAL</scp>B<scp>ASED</scp>S<scp>TRATEGIES FOR</scp>N<scp>EMATODE</scp>C<scp>ONTROL</scp>

Chitwood, David J.

doi:10.1146/annurev.phyto.40.032602.130045

Cited by 680 publications

(489 citation statements)

References 116 publications

(87 reference statements)

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“…Decoction waters generally retain water-soluble, heat-stable, nonvolatile phytochemicals, such as high-weight terpenes and phenols and alkaloids (Gonçalves et al, 2009;Tiwari et al, 2011), which have been shown to possess strong nematicidal activities (Zhao, 1999;Chitwood, 2002). Table 2 Main components (P10%) and mean corrected mortality at 2 lL/mL (mean ± s.e., in %) of the EOs fractions.…”

Section: Decoction Watersmentioning

confidence: 99%

Bioactivity against Bursaphelenchus xylophilus: Nematotoxics from essential oils, essential oils fractions and decoction waters

et al. 2013

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a b s t r a c tThe Portuguese pine forest has become dangerously threatened by pine wilt disease (PWD), caused by the pinewood nematode (PWN), Bursaphelenchus xylophilus. Synthetic chemicals are the most common pesticides used against phytoparasitic nematodes but its use has negative ecological impacts. Phytochemicals may prove to be environmentally friendly alternatives. Essential oils (EOs) and decoction waters, isolated from 84 plant samples, were tested against B. xylophilus, in direct contact assays. Some successful EOs were fractionated and the fractions containing hydrocarbons or oxygen-containing molecules tested separately. Twenty EOs showed corrected mortalities P96% at 2 lL/mL. These were further tested at lower concentrations. Ruta graveolens, Satureja montana and Thymbra capitata EOs showed lethal concentrations (LC 100 ) < 0.4 lL/mL. Oxygen-containing molecules fractions showing corrected mortality P96% did not always show LC 100 values similar to the corresponding EOs, suggesting additive and/or synergistic relationships among fractions. Nine decoction waters (remaining hydrodistillation waters) revealed 100% mortality at a minimum concentration of 12.5 lL/mL. R. graveolens, S. montana and T. capitata EOs are potential environmentally friendly alternatives for B. xylophilus control given their high nematotoxic properties. Nematotoxic activity of an EO should be taken in its entirety, as its different components may contribute, in distinct ways, to the overall EO activity.

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Section: Decoction Watersmentioning

confidence: 99%

Bioactivity against Bursaphelenchus xylophilus: Nematotoxics from essential oils, essential oils fractions and decoction waters

et al. 2013

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“…bevanii), rosemary (Rosmarinus officinalis), fennel (Foeniculum vulgare) and Phytophthora infestans (Soylu et al, 2006). The nematicidal activity of some plant preparations, including the activity of essential oils against Meloidogyne spp., has been demonstrated (Oka, 2000;Chitwood, 2002;Zasada et al, 2006;Wiratno et al, 2009). Meyer et al (2006) reported that extracts of Plantago lanceolata and P. rugelii were toxic to M. incognita eggs and J2, with the P. lanceolata extract tending to have the most activity.…”

Section: Resultsmentioning

confidence: 99%

Antifungal, Nematicidal and Antioxidant Activity of the Methanol Extracts Obtained from Medicinal Plants

Nguyen¹,

Seo²,

Park³

et al. 2013

Journal of Applied Biological Chemistry

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The nematicidal, antifungal and antioxidant activities of methanol extracts from six Vietnamese native medicinal plants were evaluated by various assays in vitro. Of the plant extracts tested, Terminalia nigrovenulosa was found to possess the highest activity when compared to the others. The leaves and bark of T. nigrovenulosa showed strong inhibitory activity against Meloidogyne incognita and Fusarium solani. The DPPH (1,1-Diphenyl-2-picryl-hydrazyl) radical scavenging, reducing power and total antioxidant activities of T. nigrovenulosa bark were higher than that of the remainder plant extracts. Chitinase activity of these plants was also investigated using SDS-PAGE. The results obtained in the present study indicate that T. nigrovenulosa leaf extracts are the greatest potential source as nematicides and fungicides for the control of M. incognita and F. solani. In particularly, T. nigrovenulosa bark extracts could be used as a potential source of commercially viable levels of natural antioxidant.

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“…Most plant oils studied for nematode control are essential oils containing large proportions of volatile terpenes and other compounds. These compounds involved in plants may act as repellents, attractants, hatching stimulants or inhibitors as well as nematotoxicants (Chitwood 2002). Plant extracts and microorganisms antagonistic to nematodes or producing antibiotics are also successfully used in biological controls in laboratory tests (Nguyen et al 2009), glasshouse trials (Van Damme et al 2005) and field experiments (Rao et al 2004;Okeniyi et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Management of foliar nematode Aphelenchoides ritzemabosi on Anemone hupehensis using plant extracts and pesticides

2017

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In 2013 and 2014, the effects of different products and plant extracts in the control of Aphelenchoides ritzemabosi (Schwartz, 1911) Steiner and Buhrer, 1932 on Anemone hupehensis plants variety Prinz Heinrich were estimated. Experiments were carried out under containerized cultivation. Evaluation of the effectiveness of nematicides was conducted using two common methods based on the number of nematodes per leaf and the percentage of damaged leaves. In both experiments oxamyl and abamectin, with aqueous extract of Allium sativum, were the most effective (efficacy about 40%). The aqueous bulb extracts of A. sativum, solution of extracts of Quillaja saponaria and solution of spirotetramat in combination with aqueous extract of A. sativum were ineffective. In both experimental years, the significant correlation between the number of nematodes in leaves and the sampling date was recorded. Based on Spearman rank correlation test and regression, it was shown that counting of nematodes in leaves is still the most reliable method for diagnosis of the damage caused by foliar nematodes.

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PHYTOCHEMICALBASEDSTRATEGIES FORNEMATODECONTROL

Cited by 680 publications

References 116 publications

Bioactivity against Bursaphelenchus xylophilus: Nematotoxics from essential oils, essential oils fractions and decoction waters

Bioactivity against Bursaphelenchus xylophilus: Nematotoxics from essential oils, essential oils fractions and decoction waters

Antifungal, Nematicidal and Antioxidant Activity of the Methanol Extracts Obtained from Medicinal Plants

Management of foliar nematode Aphelenchoides ritzemabosi on Anemone hupehensis using plant extracts and pesticides

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